Jonatan Ivanov

I think it is very important. I gave you everything to fix it, please do not mislead your readers.

Please don't spread this. I already told @frankel.ch why this is not a good idea.

bsky.app/profile/jona...

That escalated quickly. :D

How Not to Measure Elapsed Time How Not to Measure Elapsed Time

Please do not use System.currentTimeMillis() to measure elapsed time: develotters.com/posts/how-no...

Building Reliable workflows in Java, Tue, Feb 24, 2026, 6:00 PM | Meetup **Details** So you have a new Workflow in your application. Let's say that it has 20 steps in the workflow * What happens if the instance handling the workflow goes down *

The next @seattlejug.bsky.social event is "Building Reliable workflows in Java":

Meetup: www.meetup.com/seajug/event...

Luma: luma.com/wzzmruqe?utm...

tracing 1.7.0-M3 has been released!

Check out the changelog at https://github.com/micrometer-metrics/tracing/releases/tag/v1.7.0-M3

micrometer 1.17.0-M2 has been released!

Check out the changelog at https://github.com/micrometer-metrics/micrometer/releases/tag/v1.17.0-M2

Datasource Micrometer 1.3.1 & 2.1.1 are out 🎉
Fixed a silly typo: postgres → postgresql
This is what patch versions are for 😄

#SpringBoot #Observability #Micrometer #JDBC

Spring Initializr Initializr generates spring boot project with just what you need to start quickly!

The new versions of Datasource Micrometer (v1.3.0 and v2.1.0) are now available in start.spring.io.

Selecting “OpenTelemetry” in addition to “Datasource Micrometer” will automatically add the new OpenTelemetry module.

github.com/spring-io/st...
#SpringBoot #Observability #Micrometer #OpenTelemetry

🚀 Datasource Micrometer "v1.3.0" (Boot 3.x) and "v2.1.0" (Boot 4.x) are out on Maven Central!

✨ Initial OpenTelemetry Semantic Conventions support via
"datasource-micrometer-opentelemetry" module.

📖 Docs: jdbc-observations.github.io/datasource-m...

#SpringBoot #Micrometer #OpenTelemetry #jdbc

v1.1.0 of the Mill Build Tool for #Java #Scala and #Kotlin is out, with support for declarative builds and single-file scripts. Check it out! mill-build.org/blog/17-simp...

Instrumenting JDBC Operations in a Spring Boot Application with Datasource Micrometer - IK.AM In this article, we show how to use Datasource Micrometer with Spring Boot to instrument JDBC operations and visualize SQL logs, traces, and metrics in Grafana.

Instrumenting JDBC Operations in a Spring Boot Application with Datasource Micrometer ik.am/entries/894/en

🔍 Learn how to instrument your app for metrics, traces & logs, integrate with OpenTelemetry, and troubleshoot faster with real code samples.

Join our hands-on "Observability with Micrometer & Spring Boot 3 + 4" pre-conference workshop with
@jonatan-ivanov.bsky.social & @tommyludwig.bsky.social g

A man standing with a 20 liter bucket filled with popcorn.

Apparently the Cinema didn't joke when they said: it's popcorn day, bring your own bucket and we will fill it with popcorn for $5.
(That's 20L of popcorn.)
(Or 5 gallons.)

In Hungarian we have a different word for ratio and something is reasonable.

Do you want to guess which one we use for rational numbers?

Yes, of course we use the word for reasonable. :)

Jonatan Ivanov on how to measure all the things with Micrometer | A Bootiful Podcast Hi, Spring fans! This week we catch up with the observably awesome Jonatan Ivanov on how to measure all the things with Micrometer

Hi, Spring fans! This week we catch up with the observably awesome Jonatan Ivanov on how to measure all the things with Micrometer

https://bootifulpodcast.podbean.com/e/jonatan-ivanov-on-how-to-measure-all-the-things-with-micrometer/

Devnexus 2026 The longest-running and Largest Java Ecosystem Conference in the World.

I'm presenting on Spring and Observability at @devnexus.bsky.social in early March.
Devnexus is the biggest Java conference in the USA, I highly recommend it!
This promo code gives you 30% discount on ticket prices: SPEAK30.
devnexus.com

Apache HttpComponents – Observability (Micrometer / OpenTelemetry) Since 5.6, HttpClient ships an optional module, httpclient5-observation, that plugs straight into Micrometer (metrics + observations) and can bridge to OpenTelemetry (traces). The goal is simple:…

It's fantastic to see yet another project pick #micrometerio as the entry point to their observability story! I'm so proud to have co-authored the observation api. Remember: "instrument once and have multiple benefits out of it" hc.apache.org/httpcomponen...

If you prefer Luma instead of Meetup, I created the events there too.

Jan. 20th, To Java 26 and Beyond!
luma.com/n2kwz59y?utm...

Jan. 29th, Scotty, I need Warp Speed - Ways to improve the JVM startup/warmup
luma.com/5bljvhgz?utm...

To Java 26 and Beyond!, Tue, Jan 20, 2026, 6:00 PM | Meetup Java 25 has been released, but the Java release train continues chugging along with Java 26. In this presentation we will start with a quick review of the key changes from

@seattlejug.bsky.social will organize two events in January!

Jan. 20th, @billykorando.bsky.social: what's new in recent versions of Java
www.meetup.com/seajug/event...

Jan. 29th, @hansolo.eu: solutions to reduce JVM startup time
www.meetup.com/seajug/event...

Happy Holidays note and Java 30th anniversary coin

Thank you @sharatchander.bsky.social, Jim, and the Java Devrel Team! :)

DevelOtters.com A tech blog for develotters by develotters

develotters.com is powered by Hugo, GitHub Pages, and Develotters. :)

YouTube video by Dan Vega Spring Boot 4 OpenTelemetry: From Zero to Full Observability in Minutes

Spring Boot 4 finally has a dedicated OpenTelemetry starter. No more pulling in actuator just for observability.

Metrics, traces, and logs via OTLP out of the box.

youtu.be/6_Y41z7OIv8

If your Spring Boot apps behave like gremlins after midnight, it’s time for observability.🧌

Join @jonatan-ivanov.bsky.social at #Devnexus to learn how to instrument JVM apps using Micrometer, OpenTelemetry, Prometheus, and more, without vendor lock-in.

devnexus.com/events/i-can...

🎟️ devnexus.com

Congratulations! 🎉

🎉 Great news! Datasource Micrometer is now available on start.spring.io.
You can now create a new Spring project with Datasource observation enabled out of the box.
#Spring #SpringBoot #Micrometer #Observability #JDBC

YouTube video by Coffee + Software Micrometer legend Jonatan Ivanov

Coffee and Software live stream with @starbuxman.joshlong.com and me starts soon:

www.youtube.com/watch?v=Atif...

Congratulations 🎉 and Happy Birthday! 🎂

Congratulations! 🎉

The Story Of Micrometer Observation | TooMuchCoding In this blog post we'll look into why and how Micrometer Observation was founded

Good morning! If it's time for you to get your morning coffee how about you take a look at my new blog post about the story of Micrometer Observation? Grab it while it's hot 😀 toomuchcoding.com/post/2025-12...